http://blogs.technet.com/b/lrobins/archive/2011/06/23/quot-admin-free-quot-active-directory-and-windows-part-1-understanding-privileged-groups-in-ad.aspxAdmin-Free Active Directory If You Haven't Been Hacked, You May Not Be Looking Closely Enough Clearly, I am not the most conscientious blogger, as can be observed by the lack of any posting regularity here. This is in part due to the fact that foren-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.technet.com/b/lrobins/archive/2011/06/23/quot-admin-free-quot-active-directory-and-windows-part-1-understanding-privileged-groups-in-ad.aspx#3437145Thu, 23 Jun 2011 20:07:24 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:3437145Laura A. Robinson<p>Ed- that&#39;s because Authenticated Users and Interactive Users are not &quot;default&quot; or &quot;built-in&quot; groups in AD- they&#39;re computed groups. You become a member of those groups by virtue of your activities- they are not manually populated. The groups I enumerated are the groups that can be found in the &quot;Builtin&quot; and &quot;Users&quot; containers in AD, and are groups that you can populate, or that are created as part of installing software on DCs or setting domain-wide configuration options.</p><div style="clear:both;"></div><img src="http://blogs.technet.com/aggbug.aspx?PostID=3437145" width="1" height="1">http://blogs.technet.com/b/lrobins/archive/2011/06/23/quot-admin-free-quot-active-directory-and-windows-part-1-understanding-privileged-groups-in-ad.aspx#3437142Thu, 23 Jun 2011 19:56:44 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:3437142Ed<p>Notice Authenticated Users and Interactive Users weren&#39;t in the table.</p> <div style="clear:both;"></div><img src="http://blogs.technet.com/aggbug.aspx?PostID=3437142" width="1" height="1">